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The following is a reprint of an article comparing performance and price of the PowerTech! TRO4 blade style with props by other leading manufacturers.  Your comments and questions are welcome at sales@ptprop.com .

PowerTech! TRO4R28

This is a small-tube four-blade prop that allows exhaust gasses to flow both through and across the tube and into the blades.  This can cause ventilation problems either on initial acceleration or as the boat breaks onto a plane.  There were no problems with the PowerTech.  The visual appearance of this prop is very close to the Mercury Trophy, but notice the difference in acceleration times and top speed.

The PowerTech TRO4 demonstrated another important factor that shows just how critical setup and engine height can be to good handling and maximum performance.  We started our testing with the propshaft setting at 3- 1/4 inches below the bottom of the hull.  At this point, chine walking and steering torque was a handful.  Each 1/4 inch up reduced both steering torque and the tendency to chine walk and when we were up a full three-quarters of an inch (propshaft 2-1/2 inches below the bottom of the boat), steering torque was greatly reduced and the tendency to chine walk had just about disappeared.

This is an excellent prop.

"reprinted with permission from Bass & Walleye Boats Magazine"

prop performance
The table indicates brand, size and style, propshaft centerline to hull bottom (engine height), speed, rpm and 0-to-30 mph time.
Engine Height 2-1/2" 2-3/4" 3" 3-1/4" 3-1/2"
Raker
$543
14-1/2"x28"
3-blade
Large tube


71.9
5700
N/A
72.0
5700
9.7 sec
71.8
5650
9.2 sec
70.7
5500
8.6 sec
Renegade
$682
13-1/2"x27"
4-blade
Small tube


68.5
6100
16.7 sec
68.7
6100
15.0 sec
69.0
6000
12.6 sec
70.1
5950
N/A
Turbo
2+2 OT
$517
13-3/4"x26"
4-blade
Small tube
68.6
6000
7.0 sec
69.0
5900
7.0 sec
69.0
5800
6.8 sec
69.4
5800
6.8 sec
69.1
5700
6.6 sec
Turbo
Lightning
$510
14-1/4"x27"
3-blade
Large tube
72.0
5800
7.9 sec
72.8
5700
8.1 sec
71.9
5600
9.0 sec




Mercury
Tempest
Plus
$620
14-5/8"x27"
3-blade
Large tube
74.6
6000
11.7 sec
73.6
5900
9.7 sec
72.4
5800
8.8 sec




Mercury
Trophy Plus
$650
13-3/4"x28"
4-blade
Small tube
73.8
5650
13.6 sec
73.7
5600
12.9 sec
73.4
5600
12.4 sec




PowerTech
TRO4R28
$485
13-3/4"x28"
4-blade
Small tube
74.4
5800
9.2 sec
73.3
5700
8.8 sec
71.5
5600
N/A
699
5400
8.6 sec


Mazco
HP4
$599.95
14"x27"
4-blade
Small tube
74.6
5700
13.7 sec
73.8
5600
13.1 sec
72.8
5550
12.2 sec
71.4
5500
10.6 sec


Turning
Point
$540
14-3/4"x27"
3-blade
Large tube
71.7
5900
9.1 sec
72.7
5800
9.0 sec
69.8
5700
N/A




Hoss Triton
Hyper Drive
$840
14-1/4"x26"
4-blade
Over hub
74.7
6200
12.9
73.4
6150
12.1 sec
71.4
6050
N/A